build error

I got this error,

(v1.3) pkg> build DFControl
  Building DFControl → `~/.julia/packages/DFControl/vJ2ZG/deps/build.log`
┌ Error: Error building `DFControl`: 
│ ERROR: LoadError: LoadError: SystemError: opening file "/home/mgaffar/.julia/packages/DFControl/vJ2ZG/deps/elkflags.jl": Permission denied
│ Stacktrace:
│  [1] #systemerror#44(::Nothing, ::typeof(systemerror), ::String, ::Bool) at ./error.jl:134
│  [2] systemerror at ./error.jl:134 [inlined]
│  [3] #open#512(::Nothing, ::Nothing, ::Nothing, ::Bool, ::Nothing, ::typeof(open), ::String) at ./iostream.jl:254
│  [4] #open at ./none:0 [inlined]
│  [5] open(::String, ::String) at ./iostream.jl:310
│  [6] #open#271(::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::typeof(open), ::var"#37#38", ::String, ::Vararg{String,N} where N) at ./io.jl:296
│  [7] open(::Function, ::String, ::String) at ./io.jl:296
│  [8] top-level scope at /home/mgaffar/.julia/packages/DFControl/vJ2ZG/deps/asset_init.jl:427
│  [9] include at ./boot.jl:328 [inlined]
│  [10] include_relative(::Module, ::String) at ./loading.jl:1105
│  [11] include(::Module, ::String) at ./Base.jl:31
│  [12] include(::String) at ./client.jl:424
│  [13] top-level scope at /home/mgaffar/.julia/packages/DFControl/vJ2ZG/deps/build.jl:80
│  [14] include at ./boot.jl:328 [inlined]
│  [15] include_relative(::Module, ::String) at ./loading.jl:1105
│  [16] include(::Module, ::String) at ./Base.jl:31
│  [17] include(::String) at ./client.jl:424
│  [18] top-level scope at none:5
│ in expression starting at /home/mgaffar/.julia/packages/DFControl/vJ2ZG/deps/asset_init.jl:427
│ in expression starting at /home/mgaffar/.julia/packages/DFControl/vJ2ZG/deps/build.jl:80
└ @ Pkg.Operations /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.3/Pkg/src/backwards_compatible_isolation.jl:649

any solutions?

thanks.